I. daprogramebis ena (algoriTmis aRweris ena), misi sintaqsi ...

I. daprogramebis ena (algoriTmis aRweris ena), misi sintaqsi, semantika. enaTa
nairsaxeobebi (manqanuri enebi, asembleri, maRali donis enebi).
translatori, kompilatori, interpretatori. daprogramebis ena C-s
Sesavali. enis Seqmnis istoria, misi ganviTareba. C-s ZiriTadi cnebebis
mimoxilva (anbani, identifikatori, rezervirebuli sityvebi, komentari).
nebismieri amocanis gadawyveta gulisxmobs garkveuli moqmedebebis
Sesrulebas. moqmedebaTa sasrul mimdevrobas, romlis zusti Sesruleba
mocemuli sawyisi monacemebis pirobebSi migviyvans winaswar dasaxul Segedamde,
algoriTmi ewodeba. moyvanili winadadeba araa algoriTmis mkacri ganmarteba,
is mxolod mcdelobaa algoriTmis arsis axsnisa. algoriTmi xasiaTdeba
Semdegi TvisebebiT:
• algoriTmi unda iyos garkveuli, e.i. potenciuri SemsruleblisaTvis misi
yoveli brZaneba (moqmedeba) unda iyos calsaxad gasagebi da advilad
Sesrulebadi;
• igi unda iyos sasruli, e.i. dasaSvebi drois Semdeg (sasruli raodenoba
bijebis Semdeg) misi Sesruleba unda damTavrdes;
• algoriTmi unda iyos Sedegiani, e.i. misi Sesruleba unda iZleodes
garkveul Sedegs;
• igi unda iyos masobrivi, e.i. misi Sesruleba unda iyos SesaZlebeli ara
mxolod erTi konkretuli amocanisaTvis, aramed amocanaTa mTeli
klasisaTvis. magaliTad, ori ricxvis jamis dadgena unda xerxdebodes ara
marto ricxvebisTvis 3 da 5, aramed ricxvTa nebismieri wyvilisTvis.
arsebobs algoriTmis aRweris sxvadasxva xerxebi: sityvieri aRwera, anu
misi aRwera nebismier bunebriv enaze; grafikuli arwera, anu geometriuli
figurebis (blokebis) gamoyenebiT, rodesac TiToeul bloks Seesabameba
moqmedeba, xolo moqmedebaTa mimdevroba miTiTebulia mimarTuli isrebis
saSualebiT. Tu ki algoriTmis Sesruleba unda xdebodes kompiuterze, maSin
igi unda iyos aRwerili daprogramebis romelime enaze. am SemTxvevaSi
algoriTms uwodeben programas.
nebismieri informacia Caiwereba kompiuterSi e.w. orobiTi kodis
saSualebiT: 1-ebisa da 0-ebis erTobliobiT. imisaTvis, rom algoriTmis
Sesruleba SeiZlebodes kompiuterze, igi unda iyos Cawerili kompiuterisaTvis
gasageb enaze (e.w. manqanur enaze, romelic yoveli tipis kompiuterisTvis
gansxvavebulia da damokidebulia mis aparatul nawilze). pirveli programebi
iqmneboda orobiT kodSi: monacemebi, (ufro sworad, maTi misamarTebi) da
operaciebic (brZanebebi, romlebic sruldeboda monacemebze) warmodgenili iyo
0-ebisa da 1-ebis kombinaciiT. cxadia, rom programistisTvis es iyo rTuli
amocana. daprogramebis enebis ganviTarebis Semdeg etapze Seiqmna asembleri. am
enaSi programists SeeZlo manqanuri brZanebebis kodebis nacvlad am brZanebebis
dasaxelebis gamoyeneba (inglisuri enis abreviaturebis gamoyeneba, magaliTad
ADD, SUB da sxva), ufro metic, monacemebis damisamarTeba xdeboda ara
mexsierebis ujredis misamarTis miTiTebiT, aramed am monacemebis dasaxelebis
miTiTebiT (Semovida cvladis saxelis - identifikatoris - cneba). asemblerSi
iyo SesaZlebeli agreTve mudmivebis gansazRvrac. cxadia, rom asemblerze
daweril programas kompiuteri uSualod ver Seasrulebda, programa jer unda
yofiliyo gadayvanili manqanur enaze. aseTi mTargmneli – specialuri
programaa, romelsac translatori ewodeba. asembleris translators aseve
asembleri ewodeba.
Semdeg etapze Seiqmna uamravi daprogramebis ena (algoriTmuli ena,
radganac igi gankuTvnili iyo algoriTmis Casawerad). es enebi iyenebdnen
inglisuri enis sityvebis garkveul marags da iyvnen ufro gasagebi algoriTmis
garCevis TvalsazrisiT. yovel enas Tavisi daniSnuleba hqonda. magaliTad,
FORTRAN (FORmula TRANslating), Seqmnili 1956 wels, gankuTvnilia gamoTvliTi
amocanebis daprogramebisTvis; Cobol – biznesis sferoSi programirebisTvis;
1

Lisp – funqcionaluri da Prolog – logikuri programirebisTvis; С, С++ – sistemuri
programuli uzrunvelyofis SeqmnisTvis; DHTML, Perl, ASP, PHP – WebprogramirebisTvis;
zogi enis Seqmnis mizani iyo programirebis swavleba: Pascal,
Basic; cnobilia monacemTa bazebis marTvis enebi – SQL, PL/SQL. mogvianebiT
TiToeuli enis ganviTarebam bevri maTgani ufro farTo daniSnulebis enebad
aqcia, vidre es Tavdapirvelad iyo gaTvaliswinebuli.
algoriTmul enaze dawerili programa agreTve unda iTargmnos manqanur
enaze. amisaTvis ZiriTadad gamoiyeneba kompilatori da interpretatori. orive
SemTxvevaSi am programa-mTargmnelebs gadahyavT maRali donis algoriTmul
enaze dawerili programa – sawyisi moduli – manqanuri brZanebebis sistemaSi.
kompilatori da interpretatori gansxvavdebian Tavisi muSaobis TvalsazrisiT.
kompilatori “kiTxulobs” programas mTlianad da axdens mis gadayvanas
orobiT kodSi, ris Sedegadac iqmneba e.w. obieqturi moduli (es ki ukve
manqanur kodebSi Cawerili programaa, magram misi uSualo Sesruleba jer ver
xerxdeba, radganac sawyis modulSi SeiZleba iyos mimarTva sxva modulebze,
magaliTad standartul funqciebze). obieqturi modulis damuSavebis Semdeg
bijze iqmneba CasatvirTi moduli (mas qmnis sistemuri programa kavSirebis
redaqtori). CasatvirTi moduli – es aris programuli moduli, romlis
uSualo Sesruleba kompiuters ukve SeuZlia. kidev erTi sistemuri programa –
CamtvirTveli - uzrunvelyofs CasatvirTi modulis gadatanas operatiul
mexsierebaSi, sadac xdeba programis Sesruleba.
interpretatori ki Targmnis programis TiToeul winadadebas da axdens
mis Sesrulebas. interpretatoris naklia muSaobis SedarebiT dabali siCqare
da isic, rom programis yoveli Sesrulebis dros man unda imuSaos. samagierod,
interpretatoris saSualebiT ufro advilia programis gamarTva – programis
teqstSi Secdomebis Zieba.
kompilatoris dadebiTi mxarea is, rom igi gacilebiT swrafqmedia da
isic, rom erTxel Seqmnili obieqturi moduli (Tu sawyisi moduli ar
Secvlila) SeiZleba gaeSvas bevrjer sxvadasxva monacemebisTvis da
kompilatoris Careva am procesSi ukve saWiro ar aris.
yoveli maRali donis daprogramebis ena xasiaTdeba Semdegi
komponentebiT: anbani, sintaqsi da semantika. anbani aris im da mxolod im
simboloebis erToblioba, romelTa gamoyenebac daSvebelia mocemuli enis
winadadebebis asagebad. sintaqsi aris mocemuli enis winadadebebis agebis
wesebis erToblioba. semantika ki niSnavs enis sworad agebuli winadadebebis
aRqmis wesebis erTobliobas.
daprogramebis ena C Seiqmna 1972 wels amerikuli korporaciis AT&T Bell
Laboratory-is TanamSromlis denis riCis mier. C iRebs Tavis sawyisebs ori enidan:
B da BCPL. BCPL-is avtorma martin riCardsma 1967 wels Seqmna ena sistemuri
programebis da kompilatorebis daprogramebisTvis. 1970 wels ken tompsonma
gamoiyena daprogramebis ena B operaciuli sistema UNIX erT-erTi pirveli
versiis Sesaqmnelad. C iTvleba sistemuri programirebis enad, aRiareba moipova,
rogorc UNIX operaciuli sistemis enam. dReisaTvis praqtikulad yvela
ZiriTadi operaciuli sistema dawerilia C-ze da/an C++-ze. C-s uwodeben
saSualo donis daprogramebis enas, radganac masSi ganxorcielebulia maRali
donis algoriTmuli enebis yvela saukeTeso Tviseba da kompiuteris
aparaturasTan uSualo wvdomis SesaZlebloba, magaliTad, TiToeul bitze
wvdoma (rac, Cveulebriv, SesaZlebelia asemblerze daprogramebisas). enis
pirveli aRwera – denis riCis da braian kerniganis wigni “The ‘C’ Programming
Language” – gamovida 1978 wels, da didi xnis manZilze es iyo enis erTaderTi
aRwera (standarti). C-s upiratesobaTagan unda aRiniSnos, rom misi Sesruleba
SesaZlebelia sxvadasxva arqiteqturis manqanebze, sxvadasxva operaciul
sistemebSi. radganac C-s aqvs maRali donis algoriTmuli enis yvela
damaxasiaTebeli komponenti, igi maleve gaxda popularuli agreTve rogorc
2

gamoyenebiTi programirebis ena. C-s gamoyenebam sxvadasxva tipis kompiuterebze
(amboben – sxvadasxva platformaze) gamoiwvia enis versiebis gaCena, rac xSirad
uSlida programebis Tavsebadobas. amitomac, 1983 wels amerikis standartebis
nacionalurma komitetma informaciis damuSavebisa da kompiuterebis dargSi
daawesa teqnikuri komisia, romelsac daevala calsaxa da manqanurdamoukidebeli
C-enis gansazRvra, anu standartis SemuSaveba. standarti
sabolood damtkicebulia 1989 wels, xolo 1988 wels gamovida kerniganis da
riCis wignis meore gamocema, romelSic aRwerilia C-s bolo versia. es versia
cnobilia rogorc ANSI C da farTod gamoiyeneba msoflioSi.
80-ani wlebis dasawyisSi igive Bell Laboratory-Si bern straustrupis mier
iyo SemoTavazebuli C-enis gafarToeba, romelsac Tavidan ewodeboda “C
klasebiT” da romelic sinamdvileSi iyo axali obieqtze orientirebuli ena.
mas mogvianebiT daerqva C++. C++-Si SesaZlebelia programireba C-s stilSic,
obieqtze orientirebul stilSic da orive stilSi erTdroulad. me-20 saukunis
90-iani wlebis dasawyisidan C++ gaxda msoflioSi erT-erTi yvelaze
aRiarebuli ena.
C-s anbani:
1. inglisuri enis asoebi (mTavruli da patara asoebi gansxvavdebian)
da qveda xazis simbolo
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
a b c d e f g h i j k l m n o p q r s t u v w x y z _
2. arabuli cifrebi
0 1 2 3 4 5 6 7 8 9
3. specialuri simboloebi da ariTmetikuli operaciebis aRmniSvneli
simboloebi
, . ; : ? ' ! | / \ ~ * + - ) ( } { < > [ ] # % & ^ "
da sxva
4. gamyofi da mmarTveli simboloebi
esenia: Hhari, tabulaciis simboloebi, axal striqonze gadasvlis
simbolo da sxva
5. amas garda gamoiyeneba e.w. mmarTveli mimdevrobebi, anu simboloebis
specialuri kombinaciebi. zogierTi maTgania:
\a (zari); \b (erTi poziciiT dabruneba); \t (horizontaluri tabulacia);
\n (axal striqonze gadasvla); \0 (nulovani simbolo);
\r (kursoris gadatana striqonis dasawyisSi) da sxva.
identifikatori
identifikatori – programuli obieqtis dasaxelebaa, romelic Sedgeba
asoebis, cifrebisa da qveda xazis simboloebisagan. amasTan, identifikatori
unda iwyebodes asoTi an qveda xazis simboloTi da ar unda iwyebodes cifriT.
rogorc ukve aRiniSna, patara da mTavruli asoebi C-Si gansxvavdebian
(magaliTad, aso a-s da aso A-s sxvadasxva orobiTi warmodgena aqvT
kompiuteris mexsierebaSi). amitom identifikatorebi ab, Ab, aB da AB – 4 sxvadasxva
identifikatoria. swori identifikatorebis magaliTebia: aBC1m2; _asd4; A9nm23L,
xolo 1bn9mFG – identifikatoris araswori Caweraa.
identifikatoris sigrZeze SezRudva ar aris. magram ANSI C standartis
mixedviT ori identifikatori gansxvavebulia, Tu isini gansxvavdebian pirvel 32
simboloSi (anu, Tu ori identifikatoris pirveli 32 simbolo emTxveva, es erTi
identifikatoria). C++-Si es SezRudva moxsnilia.
3

ezervirebuli an momsaxure sityvebi
es aris is sityvebi, romlebic gamoiyeneba C-s programaSi. magaliTad,
while double int struct break else long switch
register char return void case float if sizeof
default for union do continue enum da sxva.
amas garda sxvadasxva kompilatorebi amateben rezervirebuli sityvebis
garkveul raodenobas, rac dakavSirebulia im kompiuteris tipTan,
romlisTvisac kompilatori Seiqmna. zogierTi am sityvebidan iwyeba qveda xazis
simboloTi. magaliTad, _asm, _pascal, _near, _far da sxva. amitomac sjobs, rom
programistis mier SerCeuli identifikatorebi ar iwyebodnen qveda xazis
simboloTi.
programaSi identifikatori ar unda emTxvevodes rezervirebul sityvebs.
komentari C-Si
C-ze daweril programaSi SeiZleba gamoviyenoT komentari. komentari
warmoadgens simboloTa erTobliobas, romelsac kompilatori ar aqcevs
yuradRebas (ugulvebelyofs), anu ar amowmebs Caweris sisworeze da ar
Targmnis. komentari iwyeba simboloebiT /* da mTavrdeba simboloebiT */ .
magaliTad, /* this is the comment */. komentari SeiZleba Sedgebodes erTi an
ramdenime striqonisagan. komentaris SigniT komentaris aRmniSneli simboloebis
/* da */ gamoyeneba akrZalulia. magaliTad, Semdegi komentarebi Seicaven
Secdomas:
/* this is /* the */ comment */;
/* this is */ the */ comment */;
/* this is */ the /* comment */;
II. daprogramebis ena C-s ZiriTadi cnebebi: cvladi, mudmivi. sabazo tipebi.
tipis modifikatorebi. miniWebis operacia. cvladebis gamocxadeba,
inicializeba. gamosaxuleba, gamosaxulebis gamoTvlis wesebi.
ariTmetikuli operaciebi.
C-s programaSi dasamuSavebuli monacemebi – ricxvebi, simboloebi,
striqonebi, ricxvebis erToblioba da sxva ufro rTuli tipis monacemebi –
warmoadgenen e.w. programul obieqtebs. Tu programuli obieqti programis
bolomde unda inarCunebdes erTi da igive mniSvnelobas, mas mudmivi ewodeba.
Tu ki programuli obieqtis mniSvneloba SeiZleba Seicvalos programis
Sesrulebis dros, mas uwodeben cvlads. programuli obieqtebi programaSi
warmodgenili arian TavianTi dasaxelebis (identifikatoris) meSveobiT.
enis sabazo tipebi
C-enis yoveli cvladi unda iyos gamocxadebuli (aRwerili) mis
gamoyenebamde. aRwera gulisxmobs rogorc imis miTiTebas, Tu rogoria es
cvladi (magaliTad, mTeli ricxvia, namdvili ricxvia, simboloa), anu misi tipis
miTiTebas, aseve misi identifikatoris miTiTebas. C-Si ganmartebulia 5 sabazo
tipi:
char – simboluri;
int – mTeli;
float – mcocavi wertiliT;
double – mcocavi wertiliT ormagi sizustis;
void – carieli sidide (romelsac ara aqvs mniSvneloba).
tipebi char da int mTeli tipebia. isini gamoiyenebian mTeli ricxvebis
Sesanaxad. marTalia, char-s ewodeba simboluri tipi, magram aq winaaRmdegoba ar
4

aris. cnobilia, rom yoveli simbolo dakavSirebulia mTel ricxvTan – mis
orobiT warmodgenasTan kompiuteris mexsierebaSi (kodTan). simboluri
warmodgena gvWirdeba, rodesac simboluri informacia Segvaqvs klaviaturidan
an gamogvaqvs ekranze (an printerze), xolo kompiuterSi simboloebi Senaxulia
kodebSi. simbolos gardaqmna kodSi da piriqiT xdeba avtomaturad. char tipi
ikavebs mexsierebaSi 1 baits (8 bits). TiToeuli simbolos kodi moyvanilia
cxrilSi ASCII, romelic kodebis standartuli cxrilia da moqmedebs mTels
msoflioSi. magaliTad, simbolo-cifri ‘0’ warmodgenilia kompiuterSi orobiTi
ricxviT 00110000, rac Seesabameba aTobiT mniSvnelobas 48, e.i. simbolo ‘0’-is
kodia 48 (ASCII cxrilis mixedviT). tipi char – niSniani tipia, misi cvlilebis
diapazonia -128-dan 127-mde.
tipi int ikavebs mexsierebaSi 2 baits (16 bits) an 4 baits (32 bits), rac
damokidebulia kompiuteris manqanuri sityvis sigrZeze (manqanuri sityva aris
bitebis erToblioba, romelsac kompiuteri aRiqvams rogorc informaciis
erTeuls da amuSavebs erTianad): 16-Tanrigian manqanebSi int ikavebs 2 baits,
32-TanrigianSi ki – 4 baits. ase rom, erTi da igive programa, romlis monacemebi
mTeli tipisaa, SeiZleba sworad muSaobdes erT kompiuterze da arasworad
meoreze. imisaTvis, rom moixsnas es uxerxuloba, C-Si SemoRebulia
modifikatorebi long da short. short int yovelTvis ikavebs 2 baits, long int – 4 baits.
amas garda arsebobs kidev ori modifikatori: signed (niSniani) da unsigned
(uniSno), romlebic gamoiyeneba int da char tipebTan. magaliTad, signed short int
aRwers niSnian mokle mTels, da misTvis gamoiyofa mexsierebis 2 baiti. tipebi
char, int, float da double gaCumebis principiT arian niSnianebi. amitomac, wina
magaliTSi moyvanili tipis aRwera SeiZleba SevamokloT: short int. metic, tipi int
imdenad mniSvnelovania, rom bolo aRweraSi SeiZleba gamovtovoT int da vweroT
marto short.
signed long int aris niSniani grZeli mTeli da misTvis gamoiyofa
mexsierebis 4 baiti. eseTi tipis monacemi SegviZlia agreTve aRvweroT rogorc
long int an long.
niSniani da uniSno mTelebs Soris gansxvaveba damokidebulia imaze, Tu
rogori interpretacia aqvs mTeli ricxvis ufros bits. magaliTad, ricxvi +3-is
warmodgena kompiuteris mexsierebaSi Semdegia:
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1
me-15 ……. . . me-4 me-3 me-2 1li
0-ovani
biti
me-15 (ufrosi) biti - niSanTvisebis bitia, anu igi aCvenebs ricxvis niSans: Tu
me-15 bitSi weria 0 – ricxvi dadebiTia, Tu ki me-15 biti udris 1-s – ricxvi
uaryofiTia. amitom ricxvis sididis Casawerad gamoiyeneba 15 biti (0-vanidan
me-14-mde). rodesac gamocxadebulia uaryofiTi mTeli ricxvi, kompilatori
axdens e.w. damatebiTi kodis generirebas, romelic am uaryofiTi ricxvis kodia.
magaliTad, uaryofiTi ricxvi -3 Caiwereba kompiuteris mexsierebaSi rogorc
1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1
me-15 ……. . . me-4 me-3 me-2 1li
0-ovani
biti
ricxvi -3-is warmodgena miiReba Semdegnairad:
+3-s warmodgenaSi 0-ebi icvleba 1-biT da, piriqiT, 1-ebi 0-ebiT (ris
Sedegadac miiReba Sebrunebuli kodi); Semdeg ki umcros bits emateba 1.
miRebuli orobiTi ricxvi (damatebiTi kodi) aris uaryofiTi ricxvi -3-is
warmodgena kompiuteris mexsierebaSi.
rodesac ricxvis aRweraSi gamoiyeneba modifikatori unsigned, am ricxvis
ufrosi biti ukve ar ganixileba rogorc niSnis maCvenebeli. igi ganixileba
rogorc ricxvis sididis Casawerad gamoyofili kidev erTi biti (anu ricxvis
5

sididis Casawerad gamoiyeneba 16-ve biti), da maSin am ricxvis cvlilebis
diapazoni iwyeba 0-dan da izrdeba 2-jer.
tipebi float da double aRweren namdvil ricxvebs, amboben – ricxvebs
“mcocavi wertiliT”. es niSnavs, rom xdeba ricxvis masStabireba wertilis
gadacocebiT marcxniv an marjvniv. am dros ricxvis mniSvneloba rom ar
Seicvalos, mas amravleben 10-is Sesabamis xarisxze (E=10). magaliTad,
123.456789=1.23456789 * E+2= 12345678.9 * E-5. aq +2 da -5 aris 10-is xarisxebi.
float ikavebs mexsierebaSi 4 baits, double ki – 8 baits. amasTan double tipis
cvlads uwodeben “mcocavi wertiliT ormagi sizustis” cvlads, radganac misi
wiladi nawilis Sesanaxad gamoiyofa 52 biti, xolo float tipis cvladis wilad
nawils eTmoba 23 biti.
double tipTan SeiZleba gamoviyenoT modifikatori long. long double
mexsierebaSi ikavebs 10 baits.
Semdeg cxrilSi moyvanilia yvela SesaZlo tipi modifikatorebis
sxvadasxva kombinaciebiT
tipi
zoma baitebSi
(bitebSi)
mniSvnelobaTa diapazoni
char 1 (8) -128 -dan +127-mde
unsigned char 1 (8) 0 -dan +255-mde
signed char 1 (8) -128 -dan +127-mde
int 2 (16) -32768 -dan +32767-mde
unsigned int 2 (16) 0 -dan +65535-mde
signed int 2 (16) -32768 -dan +32767-mde
short int 2 (16) -32768 -dan +32767-mde
unsigned short int 2 (16) 0 -dan +65535-mde
signed short int 2 (16) -32768 -dan +32767-mde
long int 4 (32) -2147483648-dan +2147483647-mde
signed long int 4 (32) -2147483648-dan +2147483647-mde
unsigned long int 4 (32) 0 -dan +4294967295-mde
float 4 (32) 3.4E-38-dan 3.4E+38-mde
double 8 (64) 1.7 E-308-dan 1.7 E+308-mde
long double 10 (80) 3.4E-4932-dan 3.4E+4932-mde
rezervirebuli sityva void ANSI C standartSi SemoRebulia C++-dan. void
tipis cvladi ar arsebobs. es tipi gamoiyeneba sxva daniSnulebisaTvis, rasac
SevityobT mogvianebiT.
konstantebi C-Si
konstanta (mudmivi) aris fiqsirebuli sidide, romelic programis
bolomde ar icvlis mniSvnelobas. ganvixiloT 4 tipis konstantebi: mTeli
konstantebi,
konstantebi.
konstantebi mcocavi wertiliT, simboluri da striqonuli
mTeli konstanta SeiZleba iyos: aTobiTi, rvaobiTi an 16-obiTi ricxvi,
romelic warmogvidgens mTel sidides Sesabamisad aTobiT, 8-obiT an 16-obiT
formatSi. aTobiTi konstanta Seicavs erTs an ramdenime aTobiT cifrs, ar
iwyeba 0-iT (Tu Tavad 0-is toli ar aris). 8-obiTi konstanta aucileblad iwyeba
0-liT, romlis Semdeg modis erTi an ramdenime 8-obiTi cifri (0-7). 16-obiTi ki
iwyeba 0x an 0X da Seicavs erTs an ramdenime 16-obiT cifrs (0-9, A-F). mTeli
konstantebis magaliTebia:
10-obiTi 8-obiTi 16-obiTi
16 01 0x2BA
127 055 0XFFFF
-346 07657 0x10
6

konstantis tipi ganimarteba misi cvlilebis diapazoniT. magaliTad, Tu
mTeli tipis cvladis mniSvneloba ∈ [ − 32 768,
+ 32 767]
, misi tipia short int; Tu es
mniSvneloba udris 39 000 – konstanta unsigned short int tipisaa, Tu ki mniSvneloba
> 65 535, konstantis tipia long. C-Si arsebobs SesaZlebloba konstantebis tipis
cxadi mocemisa H, h, L, l, u da U asoebis gamoyenebiT.
Tu konstantas boloSi miwerili aqvs h an H, misi tipia short int: 123h, 14H.
mudmivebi: -123L, 78l, 0X2C7L – long int tipisaa; 37Lu, 76ul, 12Ul, 123UL – unsigned long
tipisaa; 53uh –unsigned short tipisaa.
namdvili mudmivebis Canaweri Seicavs mTel da wilad nawilebs da (an)
eqsponentas: 321.21, 7.45E-3, 9e+5. SeiZleba tipis cxadi miTiTebac: -23.4f, 67.9E-2F –
float tipis mudmivebia; 5.932L, -12.0L, 3e+9l – long double tipis konstantebia.
simboluri mudmivi apostrofebSi Cawerili simboloa. magaliTad, 'a' , '\n',
'Z', '7'. simboluri mudmivis mniSvneloba warmoadgens simbolos kods ASCII
cxrilis mixedviT.
striqonuli konstanta – ormag apostrofebSi Casmuli simboloebis
mimdevrobaa. magaliTad, ''Es aris striqoni'', ''Tbilisi – Saqartvelos dedaqalaqia''. C-Si striqoni
bolovdeba nulovani baitiT, romelic miuTiTebs, rom striqoni damTavrda da
romelsac striqonis boloSi amatebs kompilatori. amitom, 'a' da ''a'' –
gansxvavebuli programuli obieqtebia: pirveli niSnavs simbolos da
mexsierebaSi ikavebs 1 baits, xolo meore - striqonia da ikavebs 2 baits (erTs
simbolo 'a'-sTvis, meore ki nulovani baitia).
cvladebis gamocxadeba
rogorc ukve aRiniSna, cvladis gamocxadeba gulisxmobs tipis miTiTebas
da cvladis saxelis miTiTebas. magaliTad,
short x; int a,b,c; long z; unsigned char sym; double ricxvi; float gverdis_sigrdze;
C-Si daSvebulia, rom cvladis gamocxadebis dros mas mieniWos sawyisi
mniSvneloba, romelic Semdeg SeiZleba Seicvalos. magaliTad,
short x=79; int a=375, b=90, c=-123; unsigned char sym='Q'; float gverdis_sigrdze=3.25;
am magaliTebSi gamoyenebulia C-enis miniWebis operacia =. rodesac
cvladi aRwerilia, kompiuteris mexsierebaSi gamoiyofa am cvladis tipisaTvis
damaxasiaTebeli baitebis raodenoba. miniWeba aRweris dros niSnavs, rom
cvladisaTvis ganawilebul mexsierebaSi Tavidanve Caiwereba is mniSvneloba,
romelic moTavsebulia miniWebis operaciis marjvena mxares. magaliTad, aRwera
short x=79; niSnavs, rom x cvladisaTvis ganawildeba 2 baiti da am 2 baitSi
Caiwereba ricxvi 79-s orobiTi warmodgena.
Tu Semdgom programaSi Segvxvdeba Canaweri x=7, x-is mexsierebaSi
Caiwereba 7-s orobiTi warmodgena, romelic gaxdeba x cvladis mimdinare
mniSvneloba.
magaliTi: mocemulia ori mTeli ricxvi. gavucvaloT maT mniSvnelobebi.
amocanis amoxsnisTvis jer SemoviRoT aRwera
int a=9, b=3;
algoriTmis Sesasruleblad dagvWirdeba kidev erTi damatebiTi cvladi,
vTqvaT, int d;
algoriTmi ki martivia: d=a; a=b; b=d;
C-s ariTmetikuli operaciebi:
– gamokleba an “minus” niSani;
+ Sekreba;
* gamravleba;
/ gayofa;
% naSTis aReba;
++ erTiT gazrda (increment - inkrementi);
7

- - erTiT Semcireba (decrement - dekrementi).
ariTmetikuli operaciebis gamoyenebiT Caiwereba ariTmetikuli
gamosaxuleba. gamosaxuleba aris cvladebis, konstantebisa da operaciebis
garkveuli (enaSi daSvebuli) kombinacia. gamosaxulebaSi moqmedebebis
Sesruleba xdeba maTematikaSi dadgenili wesebis mixedviT. operaciaTa
Sesrulebis
gamoyeneba.
Tanmimdevrobis Sesacvlelad saWiroa mrgvali frCxilebis
magaliTi: vTqvaT, mocemulia aRwera: int x=3, y=5, z;
davadginoT z
gamosaxulebisa.
cvladis mniSvneloba, Tu z tolia x*2+(x+y)/4+(y–x)*3–5
amocanis amoxsna mdgomareobs miniWebis operaciis gamoyenebaSi:
z =x*2+(x+y)/4+(y–x)*3–5;
xolo miniWebis operaciis Sesrulebis wesi Semdegia: gamoiTvleba
= operaciis marjvena mxares mocemuli gamosaxuleba da misi mniSvneloba
Caiwereba z-isTvis ganawilebul mexsierebaSi:
1. x+y udris 8-s;
2. y–x udris 2-s;
3. x*2 udris 6-s;
4. (x+y)/4 udris 2-s;
5. (y–x)*3 udris 6-s;
6. x*2+(x+y)/4 udris 8-s;
7. x*2+(x+y)/4+(y–x)*3 udris 14-s;
8. x*2+(x+y)/4+(y–x)*3–5 udris 9-s.
amjerad, z-is mniSvneloba udris 9-s.
ganvixiloT zogierTi ariTmetikuli operacia.
a/b – Tu a da b mTeli ricxvebia, maSin sruldeba mTelad gayofa.
magaliTad, 5/2=2, -13/4=-3, 1/2=0. Tu ki erT-erTi operandi (an orive) namdvilia,
sruldeba gayofis Cveulebrivi operacia: 1.2/2=0.6, 5.0/2=2.5.
a%b – naSTis aRebis operaciaa. igi gamoiyeneba mxolod mTel ricxvebTan.
magaliTad, 5%2=1, 18%4=2, 7%8=7, -25%3=-1.
a++ niSnavs a cvladis gazrdas 1 erTeuliT. magaliTad, Tu a-s
mniSvneloba iyo 7, maSin a++ operaciis Sesrulebis Semdeg a-s mniSvneloba
gaxdeba 8. igive moxdeba, Tu ++ operacias gamoviyenebT operandis win: ++a. a++-s
uwodeben ++ operaciis postfiqsur formas, xolo ++a-s – prefiqsul formas.
orive forma niSnavs a=a+1; gansxvaveba am or formas Soris gamoCndeba, Tu
operacias gamoviyenebT miniWebis dros an gamosaxulebaSi. magaliTad,
mocemulia aRwera int a=3, b=7;
a=b++; Sesrulebis Sedegad a-s mniSvneloba gaxdeba 7-is toli, xolo b-s
mniSvneloba gaxdeba 8-s toli, e.i. a-s jer mieniWeba b-s mniSvneloba, xolo
Semdeg b gaizrdeba 1-iT.
a=++b; Sesrulebis Sedegad b-s mniSvneloba gaxdeba 8-s toli, a-s
mniSvnelobac gaxdeba 8-is toli, e.i. jer b gaizrdeba 1-iT, xolo Semdeg a-s
mieniWeba b-s gazrdili mniSvneloba.
igive wesi moqmedebs gamosaxulebis gamoTvlis dros. magaliTad,
++x*(y-z)+x/2 gamosaxulebis mniSvneloba x=7, y=10, z=8 pirobebSi iqneba 20-is
toli: ++x udris 8-s, ++x*(y-z) – 16-s, x/2 ki – 4-s (++ operaciis Sesrulebis
Sedegad x-s mieniWa mniSvneloba 8, da mocemul gamosaxulebaSi igi inarCunebs
8-is tol mniSvnelobas bolomde).
8

igive x=7, y=10, z=8 cvladebisaTvis x+(y-z)%6+y-- gamosaxulebis mniSvneloba
iqneba 19-is toli: (y-z)%6 udris 2-s, x+(y-z)%6 – 9-s, x+(y-z)%6+y-- udris 19-s,
radgan gamosaxulebis gamoTvlaSi monawileobs y-is mniSvneloba 10, da mxolod
Sendeg y-i Semcirdeba 1-iT. amaSi davrwmundebiT, Tu SevamowmebT y-is
mniSvnelobas gamosaxulebis gamoTvlis Semdeg.
III. C_programis struqtura. funqciis cneba, funqcia main(), direqtiva #include
(zogadi mimoxilva). Setana/gamotanis safuZvlebi C–Si (formatirebuli
Setana/gamotana). standartuli funqciebi printf() da scanf(). Setana/gamotanis
zogierTi formati. martivi programis magaliTi.
C-s programa warmoadgens funqciebis erTobliobas. programirebaSi
funqcia ewodeba programis damoukidebel erTeuls, romelic warmoadgens
Sinaarsobrivad dasrulebul algoriTms da garkveuli wesiT gaformebulia
konkretuli amocanis amosaxsnelad. funqciis gamoyeneba programaSi SeiZleba
imdenjer, ramdenjerac es saWiroa da programis im adgilas, sadac es saWiroa.
vTqvaT, amosaxsnelia amocana: vipovoT 4 naturaluri ricxvis (a,b,c,d)
udidesi saerTo gamyofi. amocanis amoxsna SeiZleba davyoT etapebad: pirvelad
vipovoT a da b ricxvebis usg, Semdeg c da d ricxvebis usg, bolos ki pirveli
da meore wyvilis udidesi saerTo gamyofebis usg. am aRweridan Cans, rom mTeli
amocana davida erT konkretul amocanaze – vipovoT 2 naturaluri ricxvis usg.
am konkretuli amocanis amoxsna SeiZleba gamoviyenoT jer a, b wyvilisTvis,
Semdeg c, d wyvilisTvis da bolos am wyvilebis udidesi saerTo gamyofebisTvis.
aseT SemTxvevaSi 2 naturaluri ricxvis usg-s dadgena SegviZlia garkveuli
wesiT gavaformoT calke (es iqneba C-s funqcia) da gamoviyenoT (gamoviZaxoT)
3-jer: a, b wyvilisTvis, c, d wyvilisTvis da am wyvilebis udidesi saerTo
gamyofebisTvis.
funqcias unda hqondes saxeli (identifikatori), romelic saWiroa misi
gamocxadebisaTvis, gansazRvrebisaTvis da gamoZaxebisaTvis. C-s nebismier
programaSi aucileblad unda iyos funqcia main() (mTavari funqcia). am
funqciiT iwyeba programis Sesruleba.
martivi programa
amocana: mocemulia marTkuTxa samkuTxedis kaTetebi a da b. davadginoT,
rogor Seicvleba samkuTxedis farTobi, Tu erT kaTets gavzrdiT 2-jer, xolo
meores 3-iT.
amocanis algoriTmi Zalzed martivia:
1. davadginoT samkuTxedis Tavdapirveli farTobi,
2. SevcvaloT gverdebis sidideebi pirobis Tanaxmad,
3. gamovTvaloT farTobis axali mniSvneloba,
4. SevadaroT farTobebis mniSvnelobebi (vipovoT sxvaoba farTobebis
axalsa da Tavdapirvel mniSvnelobebs Soris).
moviyvanoT amocanis algoriTmi, Cawerili C-ze:
int a=3, b=4;
float fartobi_1, fartobi_2, sxvaoba;
fartobi_1=0.5*a*b;
a=a*2;
b=b+3;
fartobi_2=0.5*a*b;
sxvaoba=fartobi_2 – fartobi_1;
aq a da b – samkuTxedis kaTetebis aRmniSvneli cvladebia, fartobi_1, fartobi_2,
sxvaoba ki – Tavdapirveli farTobis, miRebuli farTobisa da farTobebis
sxvaobis aRmniSvneli cvladebia Sesabamisad.
9

imisaTvis, rom amocana Sesruldes kompiuterze, aucilebelia algoriTmis
gaformeba programis saxiT. pirvel rigSi, amocanis algoriTmi unda Caiweros
funqcia main ( )-Si (main ( )-is tanSi).
{
}
main( )
int a=3, b=4;
float fartobi_1, fartobi_2, sxvaoba;
fartobi_1=0.5*a*b;
a=a*2;
b=b+3;
fartobi_2=0.5*a*b;
sxvaoba=fartobi_2 – fartobi_1;
Tu Cven SevecdebiT aseTi saxiT Cawerili programis Sesrulebas, kompiuteri
Caatarebs moqmedebebs, magram pasuxi CvenTvis ucnobi darCeba. saqme isaa, rom
Cven programisgan pasuxi jer ar mogviTxovia, anu programaSi ar aris
gaTvaliswinebuli pasuxis dabeWdva. Sedegis ekranze gamotanisaTvis programa
unda Seicavdes beWdvis standartul funqcias printf( ). funqcias printf( ) gaaCnia
parametrebi: erTi an meti (parametrebis raodenoba fiqsirebuli ar aris)..
pirveli (aucilebeli) parametri striqonuli tipisaa, mas uwodeben mmarTvel
striqons (control string). Cvens SemTxvevaSi funqcia gamoiyureba Semdegnairad:
printf(''shedegi=%f'', sxvaoba); aq brWyalebSi Casmuli fraza shedegi= iqneba gamotanili
ekranze ucvlelad. Semdeg mmarTvel striqonSi dgas simboloebi %f, romlebic
uCveneben, rom am adgilas iqneba gamotanili namdvili ricxvi. es namdvili
ricxvi aris mmarTveli striqonisa da mZimis Sendeg dasaxelebuli cvladis
mniSvneloba (cvladi sxvaoba-s mniSvneloba). %f-s ewodeba formatis
specifikatori. Cveni programa miiRebs saxes:
{
}
main( )
int a=3, b=4; float fartobi_1, fartobi_2, sxvaoba;
fartobi_1=0.5*a*b;
a=a*2;
b=b+3;
fartobi_2=0.5*a*b;
sxvaoba=fartobi_2 – fartobi_1;
printf(''shedegi =%f '', sxvaoba);
isev gauSvaT programa Sesrulebaze. miviRebT kompilaciis Secdomas:
Call to undefined function 'printf', rac niSnavs, rom funqcia 'printf' ar aris ganmartebuli.
saqme isaa, rom C-Si nebismieri funqcia (standartulic) cvladis msgavsad unda
iyos aRwerili mis gamoyenebamde. standartuli funqciebi aRwerilia specialur
failebSi, romlebic moTavsebulia direqtoriaSi include. am failebs aqvT
gafarToeba .h (header). standartuli printf() funqciis aRweras Seicavs faili
stdio.h. failSi stdio.h aRwerilia C-s Setana/gamotanis sxva standartuli
funqciebic. yoveli programa, romelic iyenebs Setana/gamotanis funqciebs
standartuli biblioTekidan, unda iwyebodes striqoniT #include.
striqoni #include warmoadgens programaSi
sxvadasxva standartuli funqciebis aRwerebis CarTvis brZanebas. yovel
konkretul SemTxvevaSi ’failis dasaxeleba’ unda Seicvalos konkretuli
failis saxeliT. magaliTad, brZaneba #include saWiroa striqonebTan
10

momuSave standartuli funqciebis aRwerisas; #include ki – standartuli
maTematikuri funqciebis aRwerebis CarTvis brZanebaa.
maSasadame, Cveni programa Caiwereba:
# include
main( )
{
int a=3, b=4; float fartobi_1, fartobi_2, sxvaoba;
}
fartobi_1=0.5*a*b;
a=a*2;
b=b+3;
fartobi_2=0.5*a*b;
sxvaoba=fartobi_2 – fartobi_1;
printf(''shedegi =%f '',sxvaoba);
da dagvibeWdavs: shedegi =15.000000
amocanis kiTxvaze sruli pasuxi rom gagveca, unda dagvebeWda, rom farTobi
Seicvleba 15.000000 erTeuliT. amas movaxerxebdiT, Tu printf()-s CavwerdiT ase:
printf(''fartobi sheicvleba %f erteulit'', sxvaoba);
ganxiluli programa, ramdenjerac ar unda SevasruloT igi, yovelTvis
mogvcems erTi da igive pasuxs. es xdeba imitom, rom amocanis sawyisi monacemebi
– samkuTxedis kaTetebis sidideebi – yovelTvis erTi da igive ricxvebia. anu
Cveni algoriTmi ar akmayofilebs algoriTmis masobriobis Tvisebas. imisaTvis,
rom programam imuSavos sxvadasxva samkuTxedebis SemTxvevaSi, yoveli
Sesrulebaze gaSvebis dros mas unda miewodebodes kaTetebis axali
mniSvnelobebi (magaliTad, klaviaturidan). es xerxdeba standartuli funqcia
scanf( )-is gamoyenebiT. funqcia scanf( ) agreTve aRwerilia stdio.h failSi. Cvens
programaSi mas eqneba saxe:
scanf(''%d%d'', &a, &b); aq %d – mTeli ricxvis formatis specifikatoria, &a ki
niSnavs moTxovnas, rom klaviaturidan Setanili pirvelive mTeli ricxvis
mniSvneloba Caiweros a cvladis misamarTze (cxadia, rom &b – moTxovnaa
klaviaturidan Setanili meore mTeli ricxvis mniSvnelobis b-s misamarTze
ganTavsebisa). simbolo & aucileblad unda iyos miTiTebuli.
Cveni programa gadaiwereba ase:
# include
main( )
{
int a=3, b=4;
float fartobi_1, fartobi_2, sxvaoba;
printf(''Shemoitanet katetebis mnishvnelobebi – ori mteli ricxvi: '');
scanf(''%d%d'',&a,&b);
fartobi_1=0.5*a*b;
a=a*2;
b=b+3;
fartobi_2=0.5*a*b;
sxvaoba=fartobi_2 – fartobi_1;
printf(''fartobi sheicvleba %f erteulit'',sxvaoba);
}
da misi Sesrulebis Sedegi iqneba:
11

Shemoitanet katetebis mnishvnelobebi – ori mteli ricxvi: 3 5
fartobi sheicvleba 16.500000 erteulit
da bolo SeniSvna am programasTan dakavSirebiT. C-s funqciebis aRweris
wesi Semdegia:
()
{
}
funqciis tani – Sesasrulebeli operatorebis mimdevroba
aq funqciis tipi – funqciis mier gamomuSavebuli mniSvnelobis (misi
dasabrunebeli mniSvnelobis) tipia; funqciis dasaxeleba – identifikatoria;
operatori ki ewodeba '; ' simboloTi damTavrebul enis winadadebas.
funqciis saTauris magaliTebi:
float sxvaoba(float x, float y), int func_1( ), void func2 ( ),
int jami (int a, int b).
Tu funqcia abrunebs mniSvnelobas int, mis saTaurSi SeiZleba sityva int-is
gamotoveba: gaCumebis principiT iTvleba, rom Tu funqciis saTaurSi misi tipi
ar mieTiTeba, maSin funqcia int tipisaa. magaliTad, bolo saTauri SeiZleba
gamoiyurebodes ase: jami (int a, int b).
funqciis tanSi dasabrunebeli mniSvnelobis miTiTebisaTvis gamoiyeneba
operatori return. mis sintaqs Cven gavecnobiT mogvianebiT.
axla ki daubrundeT ganxilul programas, ufro zustad, funqcia main( )-s.
rogorc vxedavT, mis saTaurSi tipi miTiTebuli ar aris. es ki niSnavs, rom
igulisxmeba tipi int, anu SeiZleboda misi aRwera tipis cxadi CvenebiTac:
int main( )
{
. . .
}
main( ) funqciis tanSi bolo operatorad unda gamoviyenoT operatori
return 0; es niSnavs, rom main( )-i abrunebs 0-s da aCvenebs imas, rom programa
dasrulda warmatebiT. maSin programis struqtura gamoiyureba:
ase: # include
int main( )
{
. . .
return 0;
}
an ase: # include
main( )
{
. . .
return 0;
}
moviyvanoT Cveni programis saboloo varianti:
# include
#include /* conio.h failSi aRwerilia standartuli funqcia getch() */
main( )
{
int a=3, b=4; float fartobi_1, fartobi_2, sxvaoba;
printf(''Shemoitanet katetebis mnishvnelobebi – ori mteli ricxvi: '');
scanf(''%d%d'',&a,&b);
fartobi_1=0.5*a*b; a=a*2; b=b+3;
fartobi_2=0.5*a*b;
sxvaoba=fartobi_2 – fartobi_1;
printf(''fartobi sheicvleba %f erteulit'',sxvaoba);
12

getch(); /* ekranis gaCereba klaviaturis nebismier Rilakze daWeramde */
return 0;
}
IV. operaciebi C-Si: miniWebis damatebiTi operaciebi, mravaljeradi miniWeba
C–Si, Sedarebis da logikuri operaciebi, operacia “ ? : “, operacia “,”,
operacia sizeof. tipebis gardaqmna ariTmetikul gamosaxulebaSi. tipebis
gardaqmna miniWebisas. cxadi gardaqmna.
rogorc ukve viciT, miniWebis operatori a=a+1; SeiZleba Seicvalos
operatoriT a++; an operatoriT ++a; . samive SemTxvevaSi a cvladis mniSvneloba
gaizrdeba 1 erTeuliT. C-Si igive moqmedebisaTvis arsebobs Caweris kidev erTi
forma: a+=1;
miniWebis damatebiTi operaciebi C-Si: +=, *=, –=, /=, %=. magaliTad,
a+=5 niSnavs igives, ras a=a+5; a*=9 igivea, rac a=a*9; a/=13 ki igivea, rac
a=a/13. amasTan, operacia a%=3 sruldeba ufro swrafad, vidre a=a%3.
C-Si SesaZlebelia mravaljeradi nimiWebis Sesruleba, e.i. mocemuli
aRwerebis pirobebSi
int x, y, z, u, a=3, b=7; daSvebulia Semdegi Canaweri: x=y=z=u=a*b;
mravaljeradi miniWebis operatorSi moqmedebebi sruldeba marjvnidan
marcxniv, anu jer gamoiTvleba mniSvneloba a*b (3*7=21), Semdeg es mniSvneloba
eniWeba cvlads u, Semdeg cvlads z, Semdeg cvlads y da bolos cvlads x.
Sedegad cvladebi x, y, z da u miiReben mniSvnelobas 21.
Sedarebis operaciebi C-Si:
< - naklebia;
- metia;
>= - meti an tolia;
== - udris;
!= - ar udris.
Sedarebis operaciebis magaliTebi: a>100; x100 gamosaxulebis mniSvneloba mcdaria, x 1
logikuri operaciebi:
&& − logikuri gamravleba ( “da” )
|| − logikuri Sekreba ( “an” )
! − logikuri uaryofa
13

C-s logikuri operaciebi Seesabameba klasikur logikur operaciebs da
sruldeba Semdegi wesebis dacviT:
X Y X&&Y X||Y !X
1 1 1 1 0
1 0 0 1 0
0 1 0 1 1
0 0 0 0 1
cxrilidan Cans, rom && operaciis Sedegi iqneba 1 (WeSmariti), Tu
operaciis orive mxares WeSmariti gamosaxulebebia (orive operandi WeSmaritia).
sxva danarCen SemTxvevaSi &&-is pasuxi 0-is tolia (mcdaria).
magaliTad, int a=23, x=56; aRweris pirobebSi logikuri operaciis
(a>10)&&(x>40) mniSvneloba iqneba 1; logikuri operaciebis (a40),
(a>10)&&(x10)||(x0) an x>0 && y>0 && z>0
5. x, y da z ricxvebidan erTi mainc dadebiTia:
14

(x>0) | | (y>0) | | (z>0) an x>0 | | y>0 | | z>0
6. weliwads ewodeba nakiani, Tu misi rigiTi nomeri 4-is jeradia, magram
100-is jeradi wlebidan nakiania mxolod 400-is jeradebi. magaliTad,
1700, 1800 da 1900 – araa nakiani wlebi, xolo 2000 – nakiani welia.
davweroT gamosaxuleba, romelic WeSmariti iqneba mxolod im
SemTxvevaSi, Tu weliwadi rigiTi nomriT y nakiania
y % 4 == 0&& y % 100 != 0 || y % 400 == 0
operacia ? :
es enis erTaderTi 3-operandiani (anu ternaruli) operaciaa. mas agreTve
pirobiT gamosaxulebas uwodeben. ganxixiloT ? : operaciis magaliTebi
int x=10, y=17, a=32, max, abs; aRweris pirobebSi gamoviTvaloT:
max=(x>y) ? x : y; ( aq x>y – pirveli operandia; x – meore, y – mesame operandebia )
abs=(a>=0) ? a : -a;
miniWebis pirvel operatorSi cvlads max mieniWeba x da y cvladebidan
udidesis mniSvneloba. Sesrulebis wesi ki Semdegia: gamoiTvleba x>y
gamosaxuleba, Tu misi mniSvneloba 1-is tolia (WeSmaritia), max-s mieniWeba
meore operandis (x-is) mniSvneloba, Tu ki x>y tolia 0-isa, anu mcdaria
(e.i. x=0, maSin abs=a; Tu ax)?a:x=9; vnaxoT, ra moqmedebas
Seasrulebs igi. amisaTvis davweroT programa:
#include
#include
main()
{
int a=23, x=56;
(a>x) ? a : x =9;
printf("a=%d x=%d\n", a, x );
getch();
return 0;
}
programis Sesrulebis Sedegia : a=23 x=9.
programis analizi gviCvenebs, rom ? : operaciis Sesrulebis Sedegad a da
x cvladebs Soris airCeva udidesi (Cvens SemTxvevaSi x) da mas mieniWeba
mniSvneloba 9. e.i. erTi miniWebis operatoris gamoyenebiT Cven amovxseniT
amocana: or cvlads Soris udidess mivaniWoT mniSvneloba 9.
Tumca ki unda aRiniSnos, rom sxva sawyisi mniSvnelobebisTvis, magaliTad,
a=23, x=5; (a>x) ? a : x =9; operatoris Sesrulebis Sedegad daibeWdeba a=23 x=5.
operacia “ , ”
am operacias C-s danarCen operaciebTan SedarebiT yvelaze dabali
prioriteti aqvs. misi Sesruleba xdeba marcxnidan marjvniv. , -iT gamoiyofa
gamosaxulebebi, xolo operaciis Sedegi iqneba bolo gamosaxulebis
mniSvneloba.
magaliTad, Semdegi programis
15

#include
#include
main()
{
int x=3, y=7;
x++, x+=y, x*=y;
printf("x=%d", x);
getch();
return 0;
}
Sedegia: x=77.
vnaxoT, rogor miiReba es Sedegi: pirvelad x++-is Sesruleba x-s mianiWebs
mniSvnelobas 4, Semdeg gamoiTvleba x+=y gamosaxuleba da x gaxdeba 4+7=11-is
toli, bolos ki Sesruldeba x*=y da miiReba mniSvneloba 11*7=77.
operacia sizeof
am operacias aqvs 2 formati: sizeof(tipi) da sizeof(gamosaxuleba). pirvel
SemTxvevaSi operacia daabrunebs mrgval frCxilebSi mocemuli tipisTvis
mexsierebaSi gamoyofili baitebis raodenobas. xolo sizeof(gamosaxuleba)
formatSi dgindeba moyvanili gamosaxulebis tipi (gamosaxuleba ar
gamoiTvleba) da gamoimuSaveba am tipisTvis gamoyofili mexsierebis zoma
baitebSi. magaliTad,
#include
#include
main()
{
long x=12, y=8; double z;
printf("%d %d", sizeof(short int), sizeof (x+y) );
printf("\n%d", sizeof(x+z) );
getch();
return 0;
}
programis muSaobis pasuxia: 2 4
8
e.i. tipi short int ikavebs mexsierebaSi 2 baits, x+y gamosaxulebis tipia long da am
tips gamoeyofa 4 baiti. saintereso Sedegi mogvca operatorma
printf("\n%d", sizeof(x+z)); x+z gamosaxulebaSi mocemulia 2 gansxvavebuli tipis
cvladis jami: x – long tipisaa, z – double tipis. programam daadgina mocemuli
jamis tipi, rogorc double da dabeWda 8 (baiti).
tipebis gardaqmna ariTmetikul gamosaxulebaSi
C-Si daSvebulia ariTmetikul gamosaxulebaSi sxvadasxva tipis
cvladebis gamoyeneba. aseTi gamosaxulebis gamoTvlis dros sruldeba tipebis
avtomaturi gardaqmna. moviyvanoT ramdenime wesi, romelic gamoiyeneba tipebis
avtomaturi gardaqmnis (amboben – tipebis dayvanis) dros:
1. float tipis operandebi daiyvaneba double tipze;
2. Tu erTi operandi long double tipisaa, meorec daiyvaneba amave tipze;
3. Tu erTi operandis tipia double, meorec gardaiqmneba double tipad;
4. char da short tipis operandebi daiyvaneba int tipze;
5. yoveli unsigned char da unsigned short operandi daiyvaneba unsigned int tipze;
6. Tu erTi operandi unsigned long tipisaa, meore operandis tipic gaxdeba
unsigned long;
7. Tu erTi operandis tipia long, meore operandis tipic gaxdeba long;
8. Tu erTi operandis tipia unsigned int, meore operandis tipic gaxdeba unsigned int.
wesebi gviCvenebs, rom gamosaxulebis gamoTvlisas operandebi daiyvaneba im
operandis tipze, romelsac udidesi zoma aqvs.
16

vTqvaT, mocemulia aRwera: double f, s; unsigned char ch; unsigned long k; int i;
da unda gamoviTvaloT
s=f*(i+ch/k);
tipebis gardaqmnis Tanmimdevroba Semdegia: operandi ch daiyvaneba unsigned int
tipze (wesi 5), Semdeg igive ch daiyvaneba unsigned long tipze, radganac ch/k
operaciaSi k - unsigned long tipisaa (wesi 6), Semdeg i daiyvaneba unsigned long tipze,
da mrgval frCxilebSi mocemuli gamosaxulebis Sedegi iqneba unsigned long
tipisa. es Sedegi daiyvaneba double tipze (wesi 3), da mTeli gamosaxulebis tipi
iqneba double.
tipebis gardaqmna miniWebisas
miniWebis dros Tu miniWebis operaciis marjvena da marcxena
operandebis tipebi gansxvavdeba, moqmedebs tipebis gardaqmnis martivi wesi:
miniWebis operaciis marjvena mxares mdebare mniSvnelobis tipi daiyvaneba im
cvladis tipze, romelsac eniWeba mniSvneloba. magaliTad, programa
#include
#include
main()
{
short x=19; char y=125; float z;
z=x+y;
printf("%d %d %d",sizeof(x), sizeof(y), sizeof(x+y));
printf("\n%d %f", sizeof(z), z);
getch();
return 0;
}
dabeWdavs pasuxs: 2 1 4
4 144.000000
pasuxidan Cans, rom x+y-is mniSvneloba gardaiqmna z-is tipze.
enaSi gaTvaliswinebulma mTeli da namdvili tipebis avtomaturma
gardaqmnam SeiZleba gamoiwvios damaxinjebuli Sedegi. magaliTad, Tu
SevasrulebT programas
#include
#include
main()
{
char x=9; long y=7; double z=987;
x=z+y;
printf("%d %d %d", sizeof(z), sizeof(y), sizeof(z+y));
printf("\n%d x=%d", sizeof(x), x);
getch();
return 0;
}
miviRebT Sedegs: 8 4 8
1 x=-30
araswori Sedegi gamoiwvia double tipis z+y-is mniSvnelobis avtomaturma
gardaqmnam char tipze (x-is tipze).
tipebis cxadi gardaqmna
C-Si SeiZleba gamoviyenoT tipis cxadi gardaqmna. vTqvaT, mocemulia
aRwera int x=25, y=8; da gamosaTvlelia x/y gamosaxuleba. radganac orive
operandi int tipisaa, / operaciis Sedegad Sesruldeba mTelad gayofa, anu
x/y => 25/8=3. Tu ki igive x da y-sTvis gvWirdeba Cveulebrivi gayofis Sedegi,
unda davweroT (float)x/y. am dros x, romelsac win mrgval frCxilebSi miwerili
aqvs (float) daiyvaneba float tipze da Sesrulebuli gayofis Sedegi iqneba 3.125000.
C-enis am saSualebas ewodeba cxadi gardaqmna.
17